我尝试了文档中的代码(https://v4-alpha.getbootstrap.com/components/forms/#form-controls),并找到了如何实现这个:
代码如下:
<div class="container">
<form>
<div class="form-group row">
<label for="inputEmail3" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input type="email" class="form-control" id="inputEmail3" placeholder="Email">
</div>
</div>
<div class="form-group row">
<label for="inputPassword3" class="col-sm-2 col-form-label">Password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="inputPassword3" placeholder="Password">
</div>
</div>
<fieldset class="form-group row">
<legend class="col-form-legend col-sm-2">Radios</legend>
<div class="col-sm-10">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios1" value="option1" checked>
Option one is this and that—be sure to include why it's great
</label>
</div>
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" …Run Code Online (Sandbox Code Playgroud)我如何为我自己的 SWT 树创建一个 Expand All 和一个 Collapse All 功能,类似于 Eclipse 的 Package Explorer 中的 Collapse All 按钮?